Contact the US department of education if you suspect or your child has been sexually harrassed while at a public school.  This will be taken very serious and if it is substantiated, there will be a cash settlement.  https://www2.ed.gov/about/offices/list/oese/oshs/factsheet.html

The Jewish Family & Children Services provides safe touch educational services for students in schools.  Read more at their website: https://jfcs-stl.org/child-abuse-prevention/